下列所说情况可能的是() A.有一环形电流产生的磁场,环内的磁感线与环外的数目不 发布时间:2017-06-08 17:45 │ 来源:www.tikuol.com 题型:选择题 问题: 下列所说情况可能的是( )A.有一环形电流产生的磁场,环内的磁感线与环外的数目不等B.电流产生的磁场比磁极产生的磁场强C.磁感线在空间某处断开D.磁场相同的两点处磁感线疏密不同
题型:选择题 根据汉语提示完成下面的句子(每空一词)。1. Eating regularly is as important as having ________ ________ ________ (健康的饮食).2. Many ________ (疾病) are caused by bacteria (细菌).3. People have cut down too many trees. ________ ________ (结果), the environment is getting worse and worse.4. You should go out to play ________ ________ (而不是) just studying indoors.5. In modern society, people ________ increasingly busy ________ (过……生活). 查看答案